Global Patent Index - EP 0897208 A3

GPI coverage and content

You can use Global Patent Index (GPI) to carry out detailed searches of the EPO’s worldwide bibliographic and legal event data collections (DOCDB and INPADOC, also used in Espacenet and PATSTAT) and download or visualise the results for statistical analysis

Current content: 123 711 965 patent documents

This week's update (05/06/2020 12:00 CET):

224 639 new documents added

1 141 291 documents amended

GPI key values

Run regular monitoring (e.g. monthly or quarterly) of technical areas or companies

Use built-in charts to visualise technical trends and patenting activity of companies

Choose the data you want to see and download to focus on what you are interested in

Run data quality assessments to measure the risk of incomplete search results

More information

GPI user manual (PDF), free trial and subscription information are available on the EPO website

Title (fr)

Publication

Application

Priority

DE 19734598 A 19970809

Abstract (en)

[origin: EP0897208A2] the system has loads (18a,18b) supplied with electrical power, an electrical power source (6) with a first characteristic voltage which normally supplies the load, an electrical power storage device (14,14b) with a second characteristic voltage which supplies the load when the supply voltage falls below a threshold. A switchover element (16a,16b) acting as a diode connects the storage device to the load when the supply voltage falls below the threshold. A potential corresp. to the storage device voltage is input (24a,24b) to the switchover device, whose output (22a,22b) corresp. to the supply voltage. The characteristic voltage of the storage device is less than that of the supply and the load can be operated with different supply voltages.